<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <title>Reflection - ECHARTS-GL</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
    <meta name="apple-mobile-web-app-capable" content="yes"> <!-- Fullscreen Landscape on iOS -->
    <link rel="stylesheet" href="./common.css">
</head>
<body>
<div id="main"></div>
<script src="../node_modules/echarts/dist/echarts.js"></script>
<script src="../node_modules/echarts/map/js/world.js"></script>
<script src="../dist/echarts-gl.js"></script>
<script src="lib/jquery.min.js"></script>
<script src="js/commonUI.js"></script>
<script>
    var chart = echarts.init(document.getElementById('main'));

    $.getJSON('data/world-population.json', function (populationData) {
        var max = -Infinity;
        var min = Infinity;
        populationData.forEach(function (item) {
            max = Math.max(Math.log(item.value), max);
            min = Math.min(Math.log(item.value), min);
        });

        var regions = populationData.map(function (item) {
            return {
                name: item.name,
                height: (Math.log(item.value) - min) / (max - min) * 3
            };
        })

        chart.setOption({
            backgroundColor: '#cdcfd5',
            toolbox: {
                feature: {
                    saveAsImage: {}
                }
            },
            geo3D: {
                map: 'world',
                shading: 'realistic',
                realisticMaterial: {
                    textureTiling: [4, 4],
                    detailTexture: 'asset/iron-rusted4/iron-rusted4-basecolor.jpg',
                    normalTexture: 'asset/iron-rusted4/iron-rusted4-normal.jpg',
                    roughness: 'asset/iron-rusted4/iron-rusted4-roughness.jpg',
                    metalness: 'asset/iron-rusted4/iron-rusted4-metalness.jpg'
                },
                light: {
                    main: {
                        intensity: 5,
                        shadow: true,
                        shadowQuality: 'high',
                        alpha: 30
                    },
                    ambient: {
                        intensity: 0
                    },
                    ambientCubemap: {
                        texture: 'asset/canyon.hdr',
                        exposure: 2,
                        diffuseIntensity: 1
                    }
                },
                viewControl: {
                    distance: 50
                },
                groundPlane: {
                    show: true,
                    color: '#222',
                    realisticMaterial: {
                        detailTexture: 'none',
                        roughness: 0.6,
                        metalness: 1
                    }
                },
                postEffect: {
                    enable: true,
                    bloom: {
                        enable: true
                    },
                    screenSpaceAmbientOcclusion: {
                        radius: 1,
                        intensity: 1,
                        enable: true,
                        quality: 'high'
                    },
                    screenSpaceReflection: {
                        enable: true
                    }
                    // depthOfField: {
                    //     enable: true,
                    //     focalRange: 10,
                    //     blurRadius: 3,
                    //     fstop: 1
                    // }
                },
                temporalSuperSampling: {
                    enable: true
                },
                itemStyle: {
                    color: '#aaa'
                },

                emphasis: {
                    itemStyle: {
                        color: [20, 8, 4]
                    },
                    label: {
                        show: false
                    }
                },

                regions: regions,

                regionHeight: 2
            }
        });
    });

    window.addEventListener('resize', function () {
        chart.resize();
    });

</script>
</body>
</html>
